SL7 postcode district: Marlow and around

SL7 is a postcode district in England, with 695 postcodes in use in 4 sectors. It has postcodes in Marlow, Marlow Bottom and Cookham. It is split between 2 councils: Buckinghamshire (672 postcodes) and Windsor and Maidenhead (23).

Postcodes in use
695
Sectors
4
Councils
2 councils
Places
3 places

Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.

Every postcode in SL7, by gigabit broadband

Map of every postcode in SL7, by gigabit broadband Of the 695 postcodes in SL7 that ONS places, 115 have no home or business that can get gigabit, 100 have some that can, 461 can all get it and 19 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 12 postcodes without gigabit; 5 postcodes without gigabit. Places named: Marlow, Cookham, Marlow Bottom. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. A4155M40A308 SL7 1PD: no Ofcom figureSL7 2FX: no Ofcom figureSL7 2FZ: no Ofcom figureSL7 2HU: no Ofcom figureSL7 3DP: no Ofcom figureSL7 3FQ: no Ofcom figureSL7 3RG: no Ofcom figureSL7 1AA: gigabit for allSL7 1AE: gigabit for allSL7 1AG: gigabit for allSL7 1AH: gigabit for allSL7 1AL: gigabit for allSL7 1AP: gigabit for allSL7 1AQ: gigabit for allSL7 1AS: gigabit for allSL7 1AU: gigabit for allSL7 1BD: gigabit for allSL7 1BE: gigabit for allSL7 1BG: gigabit for allSL7 1BH: gigabit for allSL7 1BJ: gigabit for allSL7 1BL: gigabit for allSL7 1BN: gigabit for allSL7 1BQ: gigabit for allSL7 1BU: gigabit for allSL7 1BW: gigabit for allSL7 1DE: gigabit for allSL7 1DH: gigabit for allSL7 1DJ: gigabit for allSL7 1DL: gigabit for allSL7 1DR: gigabit for allSL7 1DU: gigabit for allSL7 1DW: gigabit for allSL7 1DX: gigabit for allSL7 1DY: gigabit for allSL7 1ED: gigabit for allSL7 1EE: gigabit for allSL7 1EF: gigabit for allSL7 1EL: gigabit for allSL7 1FJ: gigabit for allSL7 1FN: gigabit for allSL7 1GA: gigabit for allSL7 1GJ: gigabit for allSL7 1GR: gigabit for allSL7 1GW: gigabit for allSL7 1HB: gigabit for allSL7 1HE: gigabit for allSL7 1HG: gigabit for allSL7 1HJ: gigabit for allSL7 1HN: gigabit for allSL7 1HP: gigabit for allSL7 1HR: gigabit for allSL7 1HS: gigabit for allSL7 1HT: gigabit for allSL7 1HW: gigabit for allSL7 1HX: gigabit for allSL7 1JH: gigabit for allSL7 1JJ: gigabit for allSL7 1JL: gigabit for allSL7 1JN: gigabit for allSL7 1JP: gigabit for allSL7 1JQ: gigabit for allSL7 1JR: gigabit for allSL7 1JS: gigabit for allSL7 1JT: gigabit for allSL7 1JU: gigabit for allSL7 1JW: gigabit for allSL7 1JY: gigabit for allSL7 1JZ: gigabit for allSL7 1LB: gigabit for allSL7 1LD: gigabit for allSL7 1LE: gigabit for allSL7 1LJ: gigabit for allSL7 1LL: gigabit for allSL7 1LS: gigabit for allSL7 1LU: gigabit for allSL7 1LW: gigabit for allSL7 1LZ: gigabit for allSL7 1NB: gigabit for allSL7 1ND: gigabit for allSL7 1NG: gigabit for allSL7 1NJ: gigabit for allSL7 1NR: gigabit for allSL7 1PA: gigabit for allSL7 1PE: gigabit for allSL7 1PF: gigabit for allSL7 1PG: gigabit for allSL7 1PH: gigabit for allSL7 1PL: gigabit for allSL7 1PN: gigabit for allSL7 1PP: gigabit for allSL7 1PQ: gigabit for allSL7 1PZ: gigabit for allSL7 1QA: gigabit for allSL7 1QF: gigabit for allSL7 1QH: gigabit for allSL7 1QJ: gigabit for allSL7 1QL: gigabit for allSL7 1QN: gigabit for allSL7 1QP: gigabit for allSL7 1QQ: gigabit for allSL7 1QR: gigabit for allSL7 1QS: gigabit for allSL7 1QT: gigabit for allSL7 1QZ: gigabit for allSL7 1RA: gigabit for allSL7 1RG: gigabit for allSL7 1RL: gigabit for allSL7 1RN: gigabit for allSL7 1RP: gigabit for allSL7 1RQ: gigabit for allSL7 1RR: gigabit for allSL7 1RT: gigabit for allSL7 1RU: gigabit for allSL7 1RW: gigabit for allSL7 1RX: gigabit for allSL7 1RY: gigabit for allSL7 1RZ: gigabit for allSL7 1SB: gigabit for allSL7 1SD: gigabit for allSL7 1SQ: gigabit for allSL7 1SS: gigabit for allSL7 1SZ: gigabit for allSL7 1TF: gigabit for allSL7 1TG: gigabit for allSL7 1TN: gigabit for allSL7 1TP: gigabit for allSL7 1TQ: gigabit for allSL7 1TR: gigabit for allSL7 1TT: gigabit for allSL7 1TU: gigabit for allSL7 1TX: gigabit for allSL7 1TY: gigabit for allSL7 1UD: gigabit for allSL7 1UE: gigabit for allSL7 1UG: gigabit for allSL7 1UH: gigabit for allSL7 1UJ: gigabit for allSL7 1UP: gigabit for allSL7 1UQ: gigabit for allSL7 1UR: gigabit for allSL7 1UT: gigabit for allSL7 1UU: gigabit for allSL7 1UW: gigabit for allSL7 1XS: gigabit for allSL7 1XY: gigabit for allSL7 1YA: gigabit for allSL7 1YL: gigabit for allSL7 2AD: gigabit for allSL7 2AG: gigabit for allSL7 2AH: gigabit for allSL7 2AJ: gigabit for allSL7 2AN: gigabit for allSL7 2AP: gigabit for allSL7 2AQ: gigabit for allSL7 2AS: gigabit for allSL7 2AT: gigabit for allSL7 2AU: gigabit for allSL7 2AX: gigabit for allSL7 2AY: gigabit for allSL7 2AZ: gigabit for allSL7 2BB: gigabit for allSL7 2BD: gigabit for allSL7 2BE: gigabit for allSL7 2BH: gigabit for allSL7 2BJ: gigabit for allSL7 2BQ: gigabit for allSL7 2DA: gigabit for allSL7 2DB: gigabit for allSL7 2DD: gigabit for allSL7 2DE: gigabit for allSL7 2DG: gigabit for allSL7 2DT: gigabit for allSL7 2ED: gigabit for allSL7 2FE: gigabit for allSL7 2FJ: gigabit for allSL7 2FN: gigabit for allSL7 2FP: gigabit for allSL7 2FQ: gigabit for allSL7 2FS: gigabit for allSL7 2FT: gigabit for allSL7 2FW: gigabit for allSL7 2HN: gigabit for allSL7 2HW: gigabit for allSL7 2JD: gigabit for allSL7 2JF: gigabit for allSL7 2JN: gigabit for allSL7 2JR: gigabit for allSL7 2JS: gigabit for allSL7 2JT: gigabit for allSL7 2JU: gigabit for allSL7 2JX: gigabit for allSL7 2JZ: gigabit for allSL7 2LA: gigabit for allSL7 2LB: gigabit for allSL7 2LD: gigabit for allSL7 2LH: gigabit for allSL7 2LL: gigabit for allSL7 2LS: gigabit for allSL7 2NB: gigabit for allSL7 2NL: gigabit for allSL7 2NP: gigabit for allSL7 2NR: gigabit for allSL7 2NS: gigabit for allSL7 2NU: gigabit for allSL7 2NW: gigabit for allSL7 2NX: gigabit for allSL7 2NY: gigabit for allSL7 2NZ: gigabit for allSL7 2PA: gigabit for allSL7 2PB: gigabit for allSL7 2PJ: gigabit for allSL7 2PR: gigabit for allSL7 2PS: gigabit for allSL7 2PT: gigabit for allSL7 2PU: gigabit for allSL7 2QB: gigabit for allSL7 2QE: gigabit for allSL7 2QG: gigabit for allSL7 2QH: gigabit for allSL7 2QL: gigabit for allSL7 2QP: gigabit for allSL7 2QR: gigabit for allSL7 2RA: gigabit for allSL7 2RB: gigabit for allSL7 2RD: gigabit for allSL7 2RE: gigabit for allSL7 2RF: gigabit for allSL7 2RG: gigabit for allSL7 2RH: gigabit for allSL7 2RQ: gigabit for allSL7 2TH: gigabit for allSL7 2UE: gigabit for allSL7 2UQ: gigabit for allSL7 3AA: gigabit for allSL7 3AB: gigabit for allSL7 3AG: gigabit for allSL7 3AH: gigabit for allSL7 3AL: gigabit for allSL7 3AN: gigabit for allSL7 3AP: gigabit for allSL7 3AQ: gigabit for allSL7 3AR: gigabit for allSL7 3AS: gigabit for allSL7 3AU: gigabit for allSL7 3AW: gigabit for allSL7 3AY: gigabit for allSL7 3AZ: gigabit for allSL7 3BA: gigabit for allSL7 3BB: gigabit for allSL7 3BE: gigabit for allSL7 3BF: gigabit for allSL7 3BJ: gigabit for allSL7 3BL: gigabit for allSL7 3BN: gigabit for allSL7 3BQ: gigabit for allSL7 3BW: gigabit for allSL7 3DX: gigabit for allSL7 3EB: gigabit for allSL7 3EG: gigabit for allSL7 3EJ: gigabit for allSL7 3EL: gigabit for allSL7 3EP: gigabit for allSL7 3EQ: gigabit for allSL7 3ES: gigabit for allSL7 3ET: gigabit for allSL7 3EU: gigabit for allSL7 3EW: gigabit for allSL7 3EX: gigabit for allSL7 3EY: gigabit for allSL7 3EZ: gigabit for allSL7 3FG: gigabit for allSL7 3FH: gigabit for allSL7 3FJ: gigabit for allSL7 3FL: gigabit for allSL7 3FN: gigabit for allSL7 3FP: gigabit for allSL7 3HA: gigabit for allSL7 3HB: gigabit for allSL7 3HN: gigabit for allSL7 3HT: gigabit for allSL7 3HW: gigabit for allSL7 3HX: gigabit for allSL7 3HY: gigabit for allSL7 3JB: gigabit for allSL7 3JE: gigabit for allSL7 3JF: gigabit for allSL7 3JG: gigabit for allSL7 3JP: gigabit for allSL7 3JR: gigabit for allSL7 3JU: gigabit for allSL7 3JX: gigabit for allSL7 3JY: gigabit for allSL7 3JZ: gigabit for allSL7 3LA: gigabit for allSL7 3LE: gigabit for allSL7 3LG: gigabit for allSL7 3LH: gigabit for allSL7 3LJ: gigabit for allSL7 3LQ: gigabit for allSL7 3LW: gigabit for allSL7 3ND: gigabit for allSL7 3NH: gigabit for allSL7 3NJ: gigabit for allSL7 3NR: gigabit for allSL7 3NS: gigabit for allSL7 3NX: gigabit for allSL7 3NZ: gigabit for allSL7 3PB: gigabit for allSL7 3PD: gigabit for allSL7 3PE: gigabit for allSL7 3PG: gigabit for allSL7 3PN: gigabit for allSL7 3PP: gigabit for allSL7 3PQ: gigabit for allSL7 3PR: gigabit for allSL7 3PS: gigabit for allSL7 3PT: gigabit for allSL7 3PU: gigabit for allSL7 3PW: gigabit for allSL7 3PY: gigabit for allSL7 3PZ: gigabit for allSL7 3QB: gigabit for allSL7 3QD: gigabit for allSL7 3QG: gigabit for allSL7 3QH: gigabit for allSL7 3QJ: gigabit for allSL7 3QL: gigabit for allSL7 3QN: gigabit for allSL7 3QP: gigabit for allSL7 3QQ: gigabit for allSL7 3QU: gigabit for allSL7 3QW: gigabit for allSL7 3RJ: gigabit for allSL7 3RL: gigabit for allSL7 3RN: gigabit for allSL7 3RW: gigabit for allSL7 3SD: gigabit for allSL7 3SE: gigabit for allSL7 3SF: gigabit for allSL7 3SY: gigabit for allSL7 3TB: gigabit for allSL7 3XB: gigabit for allSL7 3XD: gigabit for allSL7 1EB: gigabit for allSL7 1ES: gigabit for allSL7 1HZ: gigabit for allSL7 1AW: some gigabitSL7 1BP: some gigabitSL7 1DB: some gigabitSL7 1LN: some gigabitSL7 1HF: some gigabitSL7 1JD: some gigabitSL7 1JF: some gigabitSL7 1NH: some gigabitSL7 1NQ: some gigabitSL7 1NT: some gigabitSL7 1NW: some gigabitSL7 1PX: some gigabitSL7 1PY: some gigabitSL7 1QB: some gigabitSL7 1QG: some gigabitSL7 1QW: some gigabitSL7 1RE: some gigabitSL7 1RS: some gigabitSL7 1SA: some gigabitSL7 1SG: some gigabitSL7 2AB: some gigabitSL7 2AE: some gigabitSL7 2BL: some gigabitSL7 2BP: some gigabitSL7 2BU: some gigabitSL7 2BY: some gigabitSL7 2BZ: some gigabitSL7 2DF: some gigabitSL7 2DH: some gigabitSL7 2DJ: some gigabitSL7 2DP: some gigabitSL7 2DQ: some gigabitSL7 2JQ: some gigabitSL7 2LE: some gigabitSL7 2PL: some gigabitSL7 2QS: some gigabitSL7 2SD: some gigabitSL7 3BX: some gigabitSL7 3DF: some gigabitSL7 3DG: some gigabitSL7 3ED: some gigabitSL7 3EE: some gigabitSL7 3EF: some gigabitSL7 3GZ: some gigabitSL7 3HF: some gigabitSL7 3HP: some gigabitSL7 3HR: some gigabitSL7 3HS: some gigabitSL7 3HZ: some gigabitSL7 3JA: some gigabitSL7 3JD: some gigabitSL7 3JH: some gigabitSL7 3JQ: some gigabitSL7 3JT: some gigabitSL7 3LD: some gigabitSL7 3LF: some gigabitSL7 3LT: some gigabitSL7 3LU: some gigabitSL7 3LX: some gigabitSL7 3LY: some gigabitSL7 3LZ: some gigabitSL7 3NA: some gigabitSL7 3NE: some gigabitSL7 3NN: some gigabitSL7 3NY: some gigabitSL7 3PA: some gigabitSL7 3PF: some gigabitSL7 3PH: some gigabitSL7 3PJ: some gigabitSL7 3PL: some gigabitSL7 3QE: some gigabitSL7 3QF: some gigabitSL7 3QR: some gigabitSL7 3RD: some gigabitSL7 3RH: some gigabitSL7 3RQ: some gigabitSL7 3RS: some gigabitSL7 3RT: some gigabitSL7 3RZ: some gigabitSL7 3SA: some gigabitSL7 3SB: some gigabitSL7 3SR: some gigabitSL7 3YA: some gigabitSL7 1DP: some gigabitSL7 1LG: some gigabitSL7 1PJ: some gigabitSL7 1TW: some gigabitSL7 2BS: some gigabitSL7 2PE: some gigabitSL7 2PW: some gigabitSL7 3AF: some gigabitSL7 3NQ: some gigabitSL7 3QT: some gigabitSL7 1AN: no gigabitSL7 1DS: no gigabitSL7 1DT: no gigabitSL7 1FQ: no gigabitSL7 1GL: no gigabitSL7 1GN: no gigabitSL7 1HL: no gigabitSL7 1JE: no gigabitSL7 1JG: no gigabitSL7 1NU: no gigabitSL7 1QD: no gigabitSL7 1QE: no gigabitSL7 1QU: no gigabitSL7 1QY: no gigabitSL7 1RF: no gigabitSL7 1RH: no gigabitSL7 1RJ: no gigabitSL7 1SF: no gigabitSL7 1SJ: no gigabitSL7 1SY: no gigabitSL7 1UA: no gigabitSL7 2DL: no gigabitSL7 2DN: no gigabitSL7 2DS: no gigabitSL7 2DU: no gigabitSL7 2DX: no gigabitSL7 2DY: no gigabitSL7 2DZ: no gigabitSL7 2EB: no gigabitSL7 2EE: no gigabitSL7 2EH: no gigabitSL7 2EJ: no gigabitSL7 2EL: no gigabitSL7 2EN: no gigabitSL7 2EQ: no gigabitSL7 2ER: no gigabitSL7 2ES: no gigabitSL7 2ET: no gigabitSL7 2EU: no gigabitSL7 2EW: no gigabitSL7 2EX: no gigabitSL7 2EY: no gigabitSL7 2EZ: no gigabitSL7 2FD: no gigabitSL7 2FG: no gigabitSL7 2FL: no gigabitSL7 2FU: no gigabitSL7 2FY: no gigabitSL7 2HA: no gigabitSL7 2HB: no gigabitSL7 2HE: no gigabitSL7 2HF: no gigabitSL7 2HG: no gigabitSL7 2HH: no gigabitSL7 2HJ: no gigabitSL7 2HL: no gigabitSL7 2HP: no gigabitSL7 2HQ: no gigabitSL7 2HR: no gigabitSL7 2HS: no gigabitSL7 2HT: no gigabitSL7 2HY: no gigabitSL7 2JE: no gigabitSL7 2JG: no gigabitSL7 2JH: no gigabitSL7 2JJ: no gigabitSL7 2JL: no gigabitSL7 2PN: no gigabitSL7 2QT: no gigabitSL7 2QU: no gigabitSL7 2QX: no gigabitSL7 2SA: no gigabitSL7 2SB: no gigabitSL7 2SE: no gigabitSL7 2SF: no gigabitSL7 2SL: no gigabitSL7 2SN: no gigabitSL7 2SP: no gigabitSL7 2SR: no gigabitSL7 2SW: no gigabitSL7 2TA: no gigabitSL7 3BT: no gigabitSL7 3BU: no gigabitSL7 3BY: no gigabitSL7 3BZ: no gigabitSL7 3DA: no gigabitSL7 3DB: no gigabitSL7 3DD: no gigabitSL7 3DE: no gigabitSL7 3DH: no gigabitSL7 3DJ: no gigabitSL7 3DL: no gigabitSL7 3DN: no gigabitSL7 3DQ: no gigabitSL7 3DT: no gigabitSL7 3DU: no gigabitSL7 3DW: no gigabitSL7 3EA: no gigabitSL7 3NT: no gigabitSL7 3NU: no gigabitSL7 3RA: no gigabitSL7 3RB: no gigabitSL7 3RE: no gigabitSL7 3RF: no gigabitSL7 3RP: no gigabitSL7 3RR: no gigabitSL7 3RU: no gigabitSL7 3RX: no gigabitSL7 3RY: no gigabitSL7 3SG: no gigabitSL7 3SL: no gigabitSL7 1NP: no gigabitSL7 1EX: no gigabit MarlowCookhamMarlow Bottom 12 postcodes without gigabit, outlined: this goes to SL7 2SA, the one nearest the middle of them12 postcodes without gigabit5 postcodes without gigabit, outlined: this goes to SL7 2FD, the one nearest the middle of them5 postcodes without gigabit Map of every postcode in SL7, by gigabit broadband Of the 695 postcodes in SL7 that ONS places, 115 have no home or business that can get gigabit, 100 have some that can, 461 can all get it and 19 have no Ofcom figure. 2 groups of postcodes without gigabit are outlined: 12 postcodes without gigabit; 5 postcodes without gigabit. Places named: Marlow, Cookham, Marlow Bottom. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. M40 MarlowCookhamMarlow Bottom 5 postcodes without gigabit, outlined: this goes to SL7 2FD, the one nearest the middle of them5 postcodes without gigabit
  • No home or business can get gigabit: 115
  • Some can get gigabit: 100
  • Every home and business can get gigabit: 461
  • Ofcom gives no figure: 19
  • Outline: where 5 or more postcodes without gigabit lie together

Of the 695 postcodes in SL7 that ONS places, 115 have no home or business that can get gigabit, 100 have some that can, 461 can all get it and 19 have no Ofcom figure.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 51.5755, longitude -0.7782. Open this area on OpenStreetMap

Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre.

Postcodes without gigabit

115 postcodes here have no gigabit. These are the 12 first in postcode order.

Where the postcodes without gigabit lie together

What broadband can you get in SL7?

Ofcom reports on 676 of the 695 postcodes in SL7. At 461 of them every home and business can get gigabit broadband, and at 6 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit461 of 676
Postcodes where every home can get superfast620 of 676
Postcodes where some cannot get decent broadband6 of 676

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom Connected Nations, Connected Nations, Spring 2026, data for January 2026.

Is SL7 at risk of flooding?

174 of the 695 postcodes in SL7 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 835 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 174 of 695 postcodes High: 240Medium: 595Low: 1,501Very low: 84

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency flood risk, published 6 July 2026.

What do homes sell for in SL7?

Homes in SL7 sold for a typical £650,100 in the 12 months to September 2026, across 251 sales, HM Land Registry's figures show. The 12 months before gave £680,000 from 289 sales: not a change larger than chance would explain, given which homes happened to sell.

£650,100 typical price, the 12 months to September 2026
£680,000 12 months to September 2025
  • Detached £940,000 91 sales
  • Semi-detached £624,500 42 sales
  • Terraced £577,500 68 sales
  • Flat or maisonette £345,000 50 sales

Each bar is that kind's typical price, against the most expensive kind here.

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 October 2026.

Postcodes in SL7

Pick a sector, then a postcode. A sector is the district plus the next digit.

UK postcode format explained

Places in SL7

Towns and villages with postcodes in SL7, and how many each has here.

Who covers SL7

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Beaconsfield519
  • Wycombe153
  • Maidenhead23

Police force areas

  • Thames Valley695

Next to SL7

"Next to" is by number: the districts before and after SL7 in the SL area.

Check a postcode

Where the facts on this page come from

Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.

Licence: Open Government Licence v3.0.

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